As an attempt to preserve humanity, and also for the sake of scientific exploration, the existing government sent a group of scientists, explorers, and farmers deep into the ocean to live. Houses look like giant jellyfish. Families keep schools of fish as farm animals. Heavy tanks filled with oyxgen are no longer needed for underwater exploration; Liquigen, which is a lot like the amniotic fluid in a mother's belly, is sucked down into the lungs and used not only to breathe, but to balance the pressure of being underwater.
Ty has spent his entire life underwater and hopes one day to claim a piece of land that will be just his. His parents helped build the underwater colony and he loves his life on the ocean floor. But problems begin to mount when Ty comes across an abandoned sub in an area that is forbidden to exploration. In an attempt to discovered what happened in the sub, Ty meets Gemma, who lives Topside and is the brother she hasn't seen in years.
As Ty and Gemma work together to find Gemma's missing brother and learn more about the abandaoned sub, life underwater becomes more dangerous as a band of outlaws attacks a family's homestead and supplies such as Liquigen become more and more scarce.
I almost didn't read this book because I don't really like the water very much. However, I really liked the idea that humans are smart enough to survive underwater and as I started reading, I really like Ty as a main character. He is brave and not afraid to do what he thinks is right even if it means he'll get in trouble for it later. I also really liked Gemma because of her spunk and determination. It was a really fast read and full of action. Some of the subplots were easy to figure out, but overall I really enjoyed it and would recommend it to anyone wanting a book full of a little mystery and a lot of action.
Other books I would recommend: